Pulsed photoacoustic technique to study nonlinear processes in liquids: Results in toluene | Zendy

C. V. Bindhu | Zendy; S. S. Harilal | Zendy; R. C. Issac | Zendy; Geetha K. Varier | Zendy; V. P. N. Nampoori | Zendy; C. P. G. Vallabhan | Zendy

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Pulsed photoacoustic technique to study nonlinear processes in liquids: Results in toluene

Author(s) -

C. V. Bindhu,

S. S. Harilal,

R. C. Issac,

Geetha K. Varier,

V. P. N. Nampoori,

C. P. G. Vallabhan

Publication year - 1995

Publication title -

pramana

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.513

H-Index - 52

ISSN - 0304-4289

DOI - 10.1007/bf02848475

Subject(s) - materials science , laser , photoacoustic imaging in biomedicine , absorption (acoustics) , wavelength , photoacoustic spectroscopy , photoacoustic effect , optics , toluene , amplitude , signal (programming language) , pulsed laser , two photon absorption , laser power scaling , optoelectronics , physics , chemistry , organic chemistry , computer science , composite material , programming language

Pulsed photoacoustic measurements have been carried out in toluene at 532 nm wavelength using a Q-switched frequency doubled Nd:YAG laser. The variation of photoacoustic signal amplitude with incident laser power indicates that at lower laser powers one photon absorption takes place at this wavelength while a clear two photon absorption occurs in this liquid at higher laser powers. The studies made here demonstrate that pulsed photoacoustic technique is simple and effective for the investigation of multiphoton processes in liquids.

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